EP3054250A1 - Method and machine for automatically coiling in spool form pipes with a constant internal pressure - Google Patents

Method and machine for automatically coiling in spool form pipes with a constant internal pressure Download PDF

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Publication number
EP3054250A1
EP3054250A1 EP16153627.1A EP16153627A EP3054250A1 EP 3054250 A1 EP3054250 A1 EP 3054250A1 EP 16153627 A EP16153627 A EP 16153627A EP 3054250 A1 EP3054250 A1 EP 3054250A1
Authority
EP
European Patent Office
Prior art keywords
pipe
machine
sealing
coiling
reel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP16153627.1A
Other languages
German (de)
French (fr)
Other versions
EP3054250B1 (en
Inventor
Alessandro Balzanelli
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fb Balzanelli Srl
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Fb Balzanelli Srl
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Filing date
Publication date
Priority to ITMI20150156 priority Critical
Application filed by Fb Balzanelli Srl filed Critical Fb Balzanelli Srl
Publication of EP3054250A1 publication Critical patent/EP3054250A1/en
Application granted granted Critical
Publication of EP3054250B1 publication Critical patent/EP3054250B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H61/00Applications of devices for metering predetermined lengths of running material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D11/00Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H54/00Winding, coiling, or depositing filamentary material
    • B65H54/56Winding of hanks or skeins
    • B65H54/58Swifts or reels adapted solely for the formation of hanks or skeins
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H54/00Winding, coiling, or depositing filamentary material
    • B65H54/56Winding of hanks or skeins
    • B65H54/62Binding of skeins
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H54/00Winding, coiling, or depositing filamentary material
    • B65H54/70Other constructional features of yarn-winding machines
    • B65H54/71Arrangements for severing filamentary materials
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H63/00Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package
    • B65H63/08Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to delivery of a measured length of material, completion of winding of a package, or filling of a receptacle
    • B65H63/082Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to delivery of a measured length of material, completion of winding of a package, or filling of a receptacle responsive to a predetermined size or diameter of the package
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00Handled material; Storage means
    • B65H2701/30Handled filamentary material
    • B65H2701/33Hollow or hose-like material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00Handled material; Storage means
    • B65H2701/30Handled filamentary material
    • B65H2701/33Hollow or hose-like material
    • B65H2701/331Hollow or hose-like material leaving an extruder

Abstract

Machine for coiling pipes (1) in spool form, comprising a structure (10) supporting a rotating reel (11), a feeder unit for feeding a pipe (1) to the reel (11) in a longitudinal direction (X-X), a device (12) for cutting the pipe (1), a unit (20) for measuring the length of the pipe (1), arranged upstream of the cutting device (12), in the longitudinal direction (X-X), said machine comprising
a device for hermetically sealing the pipe arranged in a zone of the machine situated upstream - in the direction of feeding of the pipe towards the reel - of the means for fastening to the reel and upstream of the cutting device in the same direction of feeding.

Description

  • The present invention relates to a method for automatically coiling pipes under pressure onto a spool and to a pipe coiling machine which implements such a method.
  • It is known, in the technical sector relating to the coiling of pipes, hanks and the like into spools, that the latter are obtained by coiling the hank onto a reel rotating on a motor-driven hub of a coiling machine.
  • Also known in the art are different models of coilers for automatically coiling pipes made of plastic and other materials, which operate with a completely automatic cycle comprising essentially the following steps:
    • -) extruding the pipe fed in a continuous cycle to a coiling machine;
    • -) automatically fastening the pipe to be coiled onto the reel by means of a corresponding mechanical device;
    • -) automatically starting the coiling step, during which a second pipe-guiding device distributes the pipe on the rotating reel;
    • -) automatically cutting the pipe when the set coiling length is reached;
    • -) automatically unloading, once the spool has been packaged, the roll produced, which is therefore in the form of a pipe which is perfectly coiled to the desired length ready for the palletizing operation.
  • A particular example of such production cycles consists of pipes - such as Pex-a pipes used for heating floor panels - for which a high product quality and uniformity of thickness is required.
  • For this purpose various production methods have been developed, one of these envisaging the use of a constant-pressure air jet supplied inside the pipe which, in order to maintain the required internal pressure, must have its free end closed during extrusion and fastening of the pipe to the reel for performing coiling in spool form.
  • It is also known that one of the methods for production of such pipes envisages the manual sequences of:
    • manually fitting a cap onto the free end of the pipe as soon as it emerges formed from the extrusion station;
    • manually conveying inside the reel the capped front free end - referred to below as "head end" - and fastening thereof;
    • formation of the spool, by coiling the programmed number of metres of pipe;
    • cutting the wound pipe.
  • EP 2,799,382 describes a machine according to the preamble of claim 1, in which sealing is performed by means of insertion, along the production line, of a pipe closing cap.
  • During the cutting step, however, it is necessary for the new head end of the pipe being fed from the extrusion station to be closed in order to maintain the internal pressure and it is therefore required to perform preliminary crushing of the pipe upstream of the cutting zone in order to sealingly close the new free end prior to cutting thereof. Once the cut has been performed, a cap is manually fitted onto the new head end of the pipe.
  • Once the reel has completed coiling of the spool with subsequent packaging and unloading thereof, renewed fastening of the new head end of the formed pipe is performed, again manually.
  • This method, however, involves significant drawbacks, mainly arising from the need to interrupt the continuous coiling cycle with a plurality of manual operations which result in substantial increases in the machine downtime, with the production efficiency depending to a large extent on the experience and the skill of the operator responsible for performing the cuts and fitting the caps.
  • The technical problem which is posed, therefore, is that of developing a method and an apparatus for coiling in spool form pipes of the type to be kept under a generally constant, predefined, internal pressure during the entire production cycle, which is able to solve the problems of the prior art mentioned above and which is more automated in nature.
  • It is also desirable, in connection with this problem, that this apparatus should have small dimensions, be easy and inexpensive to produce and assemble and be able to be easily installed at any user location, including on already existing machines, using conventional standardized means. This results are obtained according to the present invention by a machine for coiling and packaging spools of pipes in accordance with the characteristic features of Claim 1 and by a method for coiling and packaging spools of pipes with a predefined internal pressure according to the characteristic features of Claim 8.
  • Further details may be obtained from the following description of a non-limiting example of embodiment of the subject of the present invention, provided with reference to the accompanying drawings, in which:
    • Figure 1 : shows a schematic side view of a machine for coiling pressurized pipes in spools according to the present invention and
    • Figure 2 : shows a side view of the sealing device and
    • Figure 3 : shows a schematic cross-section along the plane indicated by III-III in Fig. 2.
  • As shown in Fig. 1 and assuming solely for the sake of easier description and without any limiting meaning a pair of reference axes respectively in a longitudinal direction X-X, corresponding to the extension of the pipe 1 and the direction of feeding thereof from the outlet of an extruder 40 to the outlet of the coiling machine, and a vertical axis Z-Z corresponding to the direction of cutting of the pipe 1 to be coiled, a machine for coiling pipes 1 in spool form according to the invention substantially comprises:
    • -) a supporting structure 10 to which the following are fixed:
    • -) a reel 11 rotating about an axis perpendicular to the longitudinal direction of feeding of the pipe 1 which is in turn fed via driving means conventional per se and not described in detail;
    • -) a cutting device 12 mounted on the structure 10 upstream of the reel 10 and in turn operated in both senses of the vertical direction Z-Z by a corresponding electrical and/or pneumatic actuating device.
  • As shown, the machine is completed by a measuring unit 20 arranged upstream of the cutting device 12 and at a predefined distance D from the latter; the measuring unit is equipped with a metre-counting device 21 which measures the length of the pipe 1 supplied from the extrusion station and to be fed to the coiling machine 10 and is designed to emit a signal C1 when a predefined number of metres corresponding to the preset length of pipe 1 to be coiled is reached.
  • All the basic components of the machine are per se conventional and therefore not described in detail. It is also envisaged that the sequences and the operations of the machine and the measuring unit are actuated by means of a control and command device 1000 connected to transducer means for detecting signals emitted by sensors and controlling operations which may be of an electrical, hydraulic or equivalent nature, conventional per se and not shown or described in detail.
  • According to the invention it is envisaged that the machine should comprise a device for hermetically sealing the pipe, for example a welding gripper 30 arranged between the measuring unit 20 and the cutting device 12.
  • According to a preferred embodiment, the welding gripper 30 comprises a fixed jaw 31 and a movable jaw 32 moved by an actuating device 33, for example of the pneumatic or electromechanical type. Preferably a duct for transmission of ultrasounds is formed inside the movable jaw 32 and emerges at the end of the jaw making contact with the crushed pipe 1, for sealing thereof; the ultrasounds are generated by corresponding means 34.
  • With this machine configuration it is possible to implement a method for automatically coiling in spool form pipes kept under a predefined, generally constant, internal pressure during the production cycle, which method involves the following steps:
  1. a) starting extrusion 40 of the pipe 1 - for example of the Pex-a type, and
  2. b) feeding a first open and extruded pipe section 1 without internal pressure to the sealing unit 30;
  3. c) sealing the head end of the first pipe section not under pressure;
  4. d) feeding the sealed pipe 1 by an amount at least equal to the measurement of the sealed pipe section situated between the extruder 40 and the sealing gripper 30;
  5. e) hermetically sealing the pipe section with sealed head end, following said feeding;
  6. f) cutting the sealed extruded pipe downstream - in the direction of feeding towards the reel - of the hermetic sealing station, with formation of a pipe section having a sealed and extruded head end and a predefined internal pressure;
  7. g) feeding the sealed head end of the extruded pipe section 1 under pressure to the coiling machine with fastening of the head end to the reel 11;
  8. h) starting coiling with counting of the metres of coiled pipe;
  9. i) stopping coiling when the programmed number of metres of pipe to be coiled is reached;
  10. j) hermetically sealing the tail end of the pipe being coiled;
  11. k) cutting the pipe downstream - in the direction of feeding - of the hermetic sealing station with formation of new sealed head end of a new section of extruded pipe under pressure;
  12. l) completion of the spool being coiled, packaging and unloading thereof;
  13. m) automatic conveying of the new hermetically sealed head end to the reel 11 for fastening and starting coiling of a new spool;
  14. n) restarting the machine and the coiling cycle. According to the preferred modes of implementing the method it is envisaged that:
    • the first extruded pipe section which is not under pressure and/or does not have a predefined internal pressure is guided; and/or
    • determination of the measurements of the pipe sections to be sealed and cut is performed by means of a measuring unit 20 situated between the extruder 40 and the sealing gripper 30; and/or
    • the step of sealing the head ends of the pipe is performed by means of a welding gripper 30 designed to crush the head end of the pipe and seal it in order to avoid the seepage of fluid which would result in internal pressure losses and therefore variability of the pipe dimensions.
  • Preferably the welding operation is of the ultrasound type.
  • According to the preferred modes of implementing the method it is also envisaged:
    • -) providing a control and command device 1000 connected to the coiling machine 10, to the measuring unit 20, to the welding gripper 30 and to the cutting unit 12;
    • -) storing on said control and command device predefined length values of the pipe 1 to be coiled, feeding speeds of the pipe 1 fed for coiling, and the relative distance D between the measuring device and the cutting device 12;
    • -) start of counting by the metre-counting device 21 for counting the metres of pipe 1 fed;
    • -) emission by the metre-counting device 21 of a signal C1 when a predefined number of metres corresponding to the predefined length of pipe 1 to be coiled is reached and sending of the signal C1 to the control and command device 1000;
    • -) operation of the sealing device by the control unit 1000, after a time interval calculated from the moment of emission of the signal C1 based on the distance D between the metre-counting device 21 and the cutting device 12 and the feeding speed of the pipe;
    • -) cutting the pipe.
  • It is therefore clear how, as a result of the method and the apparatus according to the present invention, it is possible to perform automatically the production and the coiling of pipes to be kept under a constant internal pressure during the production cycle, thus avoiding the machine downtime resulting from the need for stoppages in order to carry out manual operations.
  • Bearing in mind that these types of machines process in a continuous cycle very large quantities of piping, the fact of being able to avoid machine stoppages for fitting the cap onto each new head end of the pipe sections to be coiled results in a considerable reduction in the machine downtime with a consequent increase in the productive efficiency of the machine.
  • In addition, the fact of being no longer dependent on manual operations ensures that the quality of the pipe and the coiling operation is very reliable and repeatable.
  • Although described in connection with a number of embodiments and a number of preferred examples of embodiment of the invention, it is understood that the scope of protection of the present patent is determined solely by the claims below.
  • Claims (13)

    1. Machine for coiling pipes (1) in spool form, comprising a structure (10) supporting a rotating reel (11), a feeder for feeding a pipe (1) to the reel (11) in a longitudinal direction (X-X), a device (12) for cutting the pipe (1), a unit (20) for measuring the length of the pipe (1), arranged upstream of the cutting device (12) in the longitudinal direction (X-X),
      said machine comprising
      a device for hermetically sealing the pipe, arranged in a zone of the machine situated upstream - in the direction of feeding of the pipe towards the reel - of the means for fastening to the reel and upstream of the cutting device in the same direction of feeding,
      characterized in that said sealing device comprises a sealing gripper designed to crush and weld the head end of the pipe.
    2. Machine according to Claim 1, characterized in that said sealing gripper comprises a fixed jaw (31) and a movable jaw (32) moved by an actuating means (33), for example of the pneumatic or electromechanical type.
    3. Machine according to Claim 1 or 2, characterized in that said sealing gripper comprises an ultrasound welder.
    4. Machine according to Claim 2 or 3, characterized in that the movable jaw (32) has, formed inside it, a duct for transmission of ultrasounds which are generated by associated means (34) and which reach the crushed pipe 1 for sealing.
    5. Machine according to any one of Claims 1-4, characterized in that it comprises a control and command device (1000) connected to transducer means for detecting signals emitted by sensors and controlling operation of the moving parts.
    6. Machine according to any one of Claims 1-5, characterized in that said unit (20) for measuring the length of the pipe (1) comprises:
      -) at least one metre-counting device (21) for measuring the length of the pipe (1) fed to the reel (11) in the longitudinal direction (X-X) and for emitting an end-of-measurement signal (C1).
    7. Machine according to Claim 6, characterized in that said metre-counting device (21) is designed to send the said end-of-measurement signal to the control unit (1000) when a predetermined number of measured metres is reached.
    8. Method for automatically coiling and cutting to size a pipe (1) with a predefined internal pressure and fed in a longitudinal direction (X-X) from an extruder (40) to a coiling machine equipped with a reel (11), a sealing unit (30) and at least one cutting device (12), the method comprising the following steps:
      a-e) preparing a pipe section with a sealed head end and extruded with a predefined internal pressure;
      f) feeding the sealed head end of the extruded pipe section (1) under pressure to the coiling machine with fastening of the head end onto the reel (11);
      g) starting coiling of the fastened pipe;
      h) stopping coiling when a desired length of pipe to be coiled is reached;
      i) hermetically sealing the tail end of the pipe being coiled;
      l) cutting the pipe downstream - in the direction (X-X) of feeding - of the hermetic sealing station with formation of new sealed head end of a new pipe section extruded under pressure;
      m) completion of the spool being coiled, packaging and unloading thereof;
      n) automatic conveying of the new hermetically sealed head end to the reel (11) for fastening and starting coiling of a new spool;
      o) restarting the coiling cycle;
      wherein sealing of the pipe comprises a crushing step and a step for welding the crushed edges of the said pipe.
    9. Method according to Claim 8, characterized in that the preparation step a-e) comprises the steps of:
      a) feeding a first open pipe section (1) extruded without internal pressure to the sealing unit (30);
      b) sealing the head end of the first pipe section not under pressure;
      c) advancing the sealed pipe (1) by an amount at least equal to the length of sealed pipe section situated between the extruder (40) and the sealing unit (30);
      d) hermetically sealing the pipe section with sealed head end, following said advancing operation;
      e) cutting the sealed extruded pipe downstream - in the direction (X-X) of feeding - of the hermetic sealing station, with formation of a pipe section having a sealed head end and extruded with a predefined internal pressure.
    10. Method according to Claim 8 or 9, characterized in that said predefined internal pressure is a constant pressure.
    11. Method according to Claim 10, characterized in that said welding step is an ultrasound welding step.
    12. Method according to any one of Claims 8-11, characterized in that the measurements of the pipe sections to be sealed and cut are determined by means of a measuring unit (20) arranged between the extruder (40) and the sealing gripper (30).
    13. Method according to any one of Claims 8-12, characterized in that the step of measuring the pipe section to be coiled comprises the following steps
      -) start of counting by a metre-counting device (21) for counting the metres of pipe (1) fed;
      -) emission by the metre-counting device (21) of a signal (C1) when a predefined number of metres corresponding to the predefined length of pipe (1) to be coiled is reached;
      -) sending of the signal (C1) indicating the length has been reached to the control unit (1000);
      -) defining a time interval calculated from the moment of emission of the signal (C1) by the metre-counting device and determined on the basis of the distance (D) between the measuring unit (20) and the cutting blade (12) and the speed of feeding of the pipe.
    EP16153627.1A 2015-02-05 2016-02-01 Method and machine for automatically coiling in spool form pipes with a constant internal pressure Active EP3054250B1 (en)

    Priority Applications (1)

    Application Number Priority Date Filing Date Title
    ITMI20150156 2015-02-05

    Publications (2)

    Publication Number Publication Date
    EP3054250A1 true EP3054250A1 (en) 2016-08-10
    EP3054250B1 EP3054250B1 (en) 2017-09-13

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    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP16153627.1A Active EP3054250B1 (en) 2015-02-05 2016-02-01 Method and machine for automatically coiling in spool form pipes with a constant internal pressure

    Country Status (4)

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    US (1) US10308473B2 (en)
    EP (1) EP3054250B1 (en)
    CA (1) CA2919389A1 (en)
    RU (1) RU2702523C2 (en)

    Cited By (8)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    CN109230845A (en) * 2018-09-28 2019-01-18 德清县金丝源纺织品有限公司 Reeling machine
    CN109297378A (en) * 2018-09-28 2019-02-01 德清县金丝源纺织品有限公司 Reeling equipment with tally function
    CN109319586A (en) * 2018-09-28 2019-02-12 德清县金丝源纺织品有限公司 The device of rotation combing yarn
    CN109368389A (en) * 2018-09-28 2019-02-22 德清县金丝源纺织品有限公司 Yarn shoulders a machine
    CN109368386A (en) * 2018-09-28 2019-02-22 德清县金丝源纺织品有限公司 Yarn finish system easy to operate
    CN109384092A (en) * 2018-09-28 2019-02-26 德清县金丝源纺织品有限公司 It is able to record the collating unit of number of yarns
    CN109455576A (en) * 2018-09-28 2019-03-12 德清县金丝源纺织品有限公司 The yarn that work efficiency is high shoulders a machine
    CN110723591A (en) * 2019-11-05 2020-01-24 苏州美律纺织机械电子有限公司 Spinning equipment for unloading yarns

    Families Citing this family (1)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    CN106671390A (en) * 2017-01-16 2017-05-17 佐尔中润管业科技(江苏)有限公司 Plastic pipe production line

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    JPH10238976A (en) * 1997-02-21 1998-09-11 Fujikura Ltd Manufacture of heat pipe
    EP2628576A1 (en) * 2012-02-16 2013-08-21 F.B. Balzanelli Avvolgitori S.p.A. Method for precisely cutting to size tubes wound onto a spool and machine for implementing said method.
    EP2799382A1 (en) 2013-04-30 2014-11-05 F.B. Balzanelli Avvolgitori S.p.A. Method, apparatus and plant for cutting and fitting a cap onto the opposite cut ends of a pipe

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    US2275157A (en) * 1939-12-23 1942-03-03 Canister Company Method of manufacturing fiber containers
    SU130116A1 (en) * 1959-04-03 1959-11-30 И.И. Кильдюшов Automatic for the manufacture of coils of bell wire

    Patent Citations (3)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    JPH10238976A (en) * 1997-02-21 1998-09-11 Fujikura Ltd Manufacture of heat pipe
    EP2628576A1 (en) * 2012-02-16 2013-08-21 F.B. Balzanelli Avvolgitori S.p.A. Method for precisely cutting to size tubes wound onto a spool and machine for implementing said method.
    EP2799382A1 (en) 2013-04-30 2014-11-05 F.B. Balzanelli Avvolgitori S.p.A. Method, apparatus and plant for cutting and fitting a cap onto the opposite cut ends of a pipe

    Cited By (8)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    CN109230845A (en) * 2018-09-28 2019-01-18 德清县金丝源纺织品有限公司 Reeling machine
    CN109297378A (en) * 2018-09-28 2019-02-01 德清县金丝源纺织品有限公司 Reeling equipment with tally function
    CN109319586A (en) * 2018-09-28 2019-02-12 德清县金丝源纺织品有限公司 The device of rotation combing yarn
    CN109368389A (en) * 2018-09-28 2019-02-22 德清县金丝源纺织品有限公司 Yarn shoulders a machine
    CN109368386A (en) * 2018-09-28 2019-02-22 德清县金丝源纺织品有限公司 Yarn finish system easy to operate
    CN109384092A (en) * 2018-09-28 2019-02-26 德清县金丝源纺织品有限公司 It is able to record the collating unit of number of yarns
    CN109455576A (en) * 2018-09-28 2019-03-12 德清县金丝源纺织品有限公司 The yarn that work efficiency is high shoulders a machine
    CN110723591A (en) * 2019-11-05 2020-01-24 苏州美律纺织机械电子有限公司 Spinning equipment for unloading yarns

    Also Published As

    Publication number Publication date
    US20160229658A1 (en) 2016-08-11
    CA2919389A1 (en) 2016-08-05
    EP3054250B1 (en) 2017-09-13
    US10308473B2 (en) 2019-06-04
    RU2702523C2 (en) 2019-10-08
    RU2016103136A (en) 2017-08-03
    RU2016103136A3 (en) 2019-08-21

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